One of mine rubs all over the floor if I've cleaned it with even the tiniest drop of bleach in the water, the other two aren't bothered. Wonder if it might be an olfactory system thing like catnip that some are immune to

It's apparently to do with something in the smell resembling something in cats' urine - ammonia maybe? - and they're trying to superimpose their own smell on top of it. But I'm no expert. Someone else may know the facts of it.

Be very careful if they lick it it can cause the top surface of their tongue to slough off. We treated a cat earlier this week for this 48 hours on s drip and 72 hours in the surgery being fed special food.

Our boy goes mental for the stuff! Rolling around on my nicely new clean bathroom floor, crazy kitty. We've recently acquired a newest member to the Freud family ( a 4 year old girl cat) and shes taken no notice of it at all. I wonder if it affects boy cats more maybe?

I'm real careful with bleach in any case because it's such a disaster ecologically. Cat trays in this house are always washed only with hot water and minimum detergent. Seniorboy (whose official 18th birthday is on Xmas Day) is fine with the current regime.